JPS6254632A - Assembling device for bearing and/or wheel flange boss of automobile - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The invention relates to an assembly device, in particular for motor vehicle bearings and/or wheel flange bosses, having a threaded spindle guided and supported in a thrust bearing. The present invention relates to a type in which the threaded spindle is provided with a nut that abuts against a pressing piece or a counter-receiving member.

Conventional technology Extracting devices for roller bearings are already known.
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In a crossbeam with two support legs, a pull-out spindle is arranged in a central bore, and an expansion member is arranged in a narrow spindle extension that is rigidly connected to the pull-out spindle. A widening cone is formed at the elongated end of the narrow spindle extension. The expansion cone can be inserted axially into the radially expandable expansion member. The expansion member is axially movably mounted on a thin spindle section and can be moved relative to the expansion cone by means of a nut. The expanding member is introduced in the closed state into the inner bore of the rolling bearing to be removed, for example, and is then expanded so that the rollers engage the inner ring of the rolling bearing from below. The second one attached to the threaded spindle on the upper side of the crossbeam
The threaded spindle is moved axially in the removal direction using a nut, the two support legs being supported on the edge of the bearing receptacle.

In another extraction device, a threaded spindle serving as a pressure spindle is screwed directly into a laterally extending threaded hole in the handling beam. The pull-out spar is fitted with two pull-out pawls located diametrically opposite each other in relation to the screw spindle and radially adjustable with respect to each other, the hook-shaped ends of the pull-out pawls being It engages behind the outer ring of the p-bearing, and the free end of the threaded spindle is supported on the end face of the shaft, which is press-fit into the bearing bore.

Problems to be Solved by the Invention: The assembly and removal of bearings or wheel flange bosses of automobiles requires roller removal, and a removal device for bearings is not suitable. For the first-mentioned extraction device, the possibility of supporting the support leg at the edge of the bearing receptacle is no longer available.

This is because the edges of the wheel hub flanges are covered. For the second-mentioned extraction device, the possibility of mounting the extraction claw on a υ bearing with rollers arranged inside the bearing cylinder or supporting the threaded spindle on the shaft end face is no longer available. This is because there is no shaft end face.

In particular, the section of the present invention forms an assembly device for assembling and disassembling a bearing or a wheel flange boss of a motor vehicle, and uses this assembly device to insert the bearing cylinder into the cylinder hole of the bearing cylinder or to remove it from the bearing cylinder. The rollers can guide the υ bearing in a centered state and push or push it out, and the already assembled rollers, that is, the rollers inserted into the bearing cylinder, can push the wheel flange boss into the υ bearing. It is to do so.

Means for Solving the Problems In order to solve the above problems, the present invention has an arrangement in which a thrust bearing is disposed concentrically within the end wall of a tubular spacer member, and the spacer member is arranged in a direction opposite to the thrust bearing. On the threaded spindle, at least one ring plate has at least one ring-shaped support shoulder concentric to the axis of the thrust bearing on the side end face and is provided with a cylindrical centering addition as a pressure piece. It is located.

Effects of the Invention In the invention, the operation of the assembly device is uniformly simple for all six applications, and the concentric guidance of the parts to be joined together or to be separated from each other is in a centered manner. is uniformly guaranteed.

According to the embodiment of the present invention described in claim 2,
Not only is the production of the spacer element and the end wall simple and inexpensive, but the end wall can also be replaced by another one with a different thrust bearing and possibly a different threaded spindle.

According to the embodiment of the present invention described in claim 3,
Assembly equipment is also used for bearings or wheel flange bosses of different sizes. The same applies to the embodiments of the invention according to claims 4 and 5.

According to an embodiment of the invention as claimed in claim 6, the pressing piece is used both for extracting the roller p-bearing from the bearing cylinder and for pushing the wheel flange boss into the roller p-bearing.

The embodiment of the invention according to claim 7 provides an optimum ratio between rr4++ Note and weight for easy handling of the assembly device. With the embodiment of the invention according to claim 8, the support ring or the end wall can be fastened to the spacer element in a simple and functional manner.

The assembly device shown in the drawings shows a threaded spindle 1, a thrust bearing 2 (this thrust bearing is attached to the end wall 3 of the spacer member 4).
a plurality of support rings 5, 6.7 (these support rings are arranged on the end face of the spacer element 4 facing away from the end wall 3); ) and a plurality of pressure pieces 8, 9, 10, each of which is individually and selectively mounted on the threaded spindle 1 and fitted with a nut 11 screwed onto the free end of the threaded spindle 1. axially supported.

The threaded spindle 1 is provided with a ring flange 12 at its end and a wrench profile 13 behind the ring flange, the spanner profile preferably having a hexagonal shape.

Furthermore, the threaded spindle 1 has a cylindrical centering addition 14 , which centers the threaded spindle in the thrust bearing 2 .

Is the thrust bearing 2 a ball bearing with an inner ring and an outer ring? The candy is placed in a cylindrical recess 15 that opens toward the end face. The end wall is circular and has a through hole 16 in the center for passing the screw spindle 1 therethrough. The thrust bearing 2 is fixed in position in the recess 15 by means of a retaining ring 17 which is fitted into a ring groove 18 . The end wall 3 has a threaded opening 19 on the opposite side from the recess 15, and the threaded portion can be removably screwed into a corresponding internal thread 20 of the end face of the spacer member 4. Therefore, the end wall 3 can be easily removed from the spacer member and, if necessary, replaced with another one.

The spacer member 4, which has the shape of a cylindrical tube member, has two window-shaped slit openings 21, 22' facing each other in the diametrical direction at the center in the axial direction. The slit opening not only makes it possible to look into the inner chamber of the spacer member, but also
It also helps reduce weight. The spacer member 4 is the end wall 3
On the opposite end face, there is provided an internal thread 23 into which one of the supporting rings 5, 6 or 7 is selectively screwed. All support rings are provided with a threaded portion 24 that accommodates an internal thread.

The support rings 5, 6.7 have a plurality of ring-shaped support shoulders 25 of different diameters on the end face opposite to the threaded part 24.
It has 26, 27, 28, 29.30. Support shoulders 25-30 of different diameter are adapted to different bearing cylinders 31 of the motor vehicle. The bearing cylinder is mounted on the shaft leg 32 of the motor vehicle and rollers are defined for receiving the shaft bearing 33. The rolling bearing is pushed into or removed from the bearing cylinder 31 using an assembly device.

The cylindrical centering addition part 8' is configured as a cylindrical ring plate with different diameters and has different diameters.
, 9', 10', and which are selectively inserted into the threaded spindle 1, rollers of different shapes are fitted to the bearings 33, and therefore, as shown in FIGS. 2 or 4, centering and acceptance in a form that

In FIGS. 1 and 2, the assembly device is an axle leg 3 of an automobile.
The rollers are used to extract the second bearing 33 from the second bearing cylinder 31. The support ring 6 selected in this case is screwed into the internal thread 23 of the spacer element 4 with its threaded attachment 24, and the rollers try to pull out the bearing 33 for centering the spacer element 4. Threaded spindle 1 mounted on the free end face of the bearing cylinder 31
The rollers pass through the shaft bearing 33 or the bearing cylinder 31. Then, from the opposite side, the pressure piece 8 is first loosely inserted into the threaded spindle, and with the thread the nut 11 rolls the end face surrounding the cylindrical centering extension 8' of the pressure piece 8, so that it fully engages the bearing 33. Screw it in until it touches. The threaded spindle is then turned using a spanner fitted in the spanner molding 13, so that the nut 11, which may optionally be prevented from rotating together with the threaded spindle by another spanner, is turned as shown by the arrow. 34, and the rollers push the bearing 33 out of the bearing cylinder 31 into the hollow space of the spacer member 4. By centering the spacer member 4 with respect to the bearing cylinder 31 on the one hand and centering the pressing piece 8 with respect to the roller bearing 33 on the other hand, the tension or pushing force exerted by the rollers on the bearing cylinder 33 is reduced. If the rollers are correctly oriented in the axial direction, tilting of the bearing can be avoided.

In order to remove the released roller bearing 33 from the threaded spindle 1, it is of course necessary to unscrew the nut 11. This is done after the entire assembly device has been extracted from the cylindrical bore of the bearing cylinder 31 in the direction of the arrow 34. For bearings with larger or smaller rollers, a pressing piece 9 or 10 is used in place of the pressing piece 8. Similarly, support rings 5 or 7 are used for bearing cylinders 31 of different diameters.

The roller bearing 33 is inserted into the cylindrical hole 35 of the bearing cylinder 31.
For pushing in, an assembly device of the type shown in FIGS. 3 and 4 is used.

In this case, the pressing piece 8/1 with the centering addition 8' receives the roller bearing 33 in a centered state, and then the roller bearing 33 is inserted into the cylindrical hole 35 of the bearing cylinder 31. Plugged in. When the roller bearing 33 is pushed into the bearing cylinder 31, the entire length of the threaded spindle 1 is required. Pressing piece 8/1 is relative to pressing piece 8,
It differs in that it does not have a cylindrical notch in which the nut 11 is partially sunk in on the end face on the side opposite to the centering addition part 8'.

In the manner shown in FIG. 5, an assembly device is also used to press the wheel flange boss 36 into the rolling bearing 33 already located in the bearing cylinder 31. For this,
The spacer member 4 is provided with a support ring 7/1 on the side opposite to the end wall 3, and the support ring receives and supports the cylindrical boss addition part 37 of the wheel flange boss 36 in a centered state. The outer end face 38 of the ring abuts a ring shoulder 39 of the wheel flange boss 36. A pressing piece 40 is provided as a corresponding support on the end section of the screw thread that projects from the rolling bearing 33 to the side opposite to the wheel flange boss. The pressing piece 40 is the shorter centering addition part 41
The rollers project slightly into the bore of the shaft bearing 33 in a centered state and are supported by a long centering extension 42 on a nut screwed into the free end of the threaded spindle 1.

In this state, by rotating the threaded spindle 1 while preventing the nut 11 from rotating, the distance between the nut 11, the spacer member 4 and the support ring 7/1 is shortened, and the bearing boss 36' is moved in the direction of the arrow 43. , already the retaining ring 44
As a result, the rollers fixed within the bearing cylinder 31 are pushed into the bearing cylinder 33. Also in this case, the wheel flange boss 36 is received in a centered state in the support ring 771 on the one hand, and the pressing piece 40 is received in a state in which the rollers are centered in the bearing 33 on the other hand. , a precise concentric arrangement of the mutually engaging components and a precisely axial action of the forces between the mutually engaging components are ensured. Once the bearing boss 36' has been completely pushed into the roller bearing 33, the nut 11 is unscrewed from the threaded spindle 1 and the entire assembly device is removed.

It is clear from the exemplary embodiments described above that the assembly device according to the invention, which consists of a small number of single parts that can be produced easily and that can be easily combined, can be used in a simple manner for three different work processes, namely Roller 9 Bearing 33 Bearing Cylinder 31
In order to push the bearing 33 into the bearing cylinder 3, the rollers push the bearing 33 into the bearing cylinder 3.
1 and for pushing the wheel flange hub into the wheel bearing 33 by rollers already fixed in the bearing cylinder 31, the forces generated in each case acting precisely in the axial direction.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which FIG. 11 is an exploded perspective view of the assembly device, FIG. 2 is a partial sectional view showing the assembly device mounted on a wheel bearing of an automobile, and FIG. 3 is a roller is an exploded perspective view of the assembly device used to push in the wheel flange boss, FIG. 4 is a partial sectional view showing the assembly device of FIG. 3 attached to the wheel bearing, and FIG. FIG. 3 is a partial cross-sectional view showing the vehicle mounted on a wheel bearing.

Claims (1)

[Claims] 1. An assembly device for a bearing and/or a wheel flange boss of an automobile, comprising a threaded spindle guided and supported in a thrust bearing, the threaded spindle being a pressure piece or a counter-receiving member. In the version with an abutting nut, the thrust bearing (2) is arranged concentrically in the end wall (3) of the tubular spacer member (4), and the spacer member is located in the thrust bearing (2). At least one ring-shaped support shoulder (25, 26, 27, 28, 29, 30
, 38) and pressing pieces (8, 9, 10, 8/1
, 40) as cylindrical centering addition parts (8', 9
Assembly device for a bearing and/or wheel flange boss of a motor vehicle, characterized in that at least one ring plate with a ring plate (', 10', 41) is arranged on a threaded spindle (1). 2. The assembly device according to claim 1, wherein the end wall (3) for receiving the thrust bearing (2) is releasably fixed to the spacer member (4). 3. Support shoulders (25
, 26, 27, 28, 29, 30, 38). Assembly device according to claim 1, characterized in that a plurality of support rings (5, 6, 7, 7/1) are provided. 4. Different centering additions (8', 9', 10') for selective loose mounting on the threaded spindle (1)
, 41, 42) with different diameters.
, 9, 10, 40). The assembly apparatus according to any one of claims 1 to 3, wherein 5. Assembly device according to claim 3, in which the individual support rings (6, 7) each have a plurality of support shoulders (26, 27, 28, 29, 30). 6. A relatively long centering addition part (42) with a pressing piece (40) configured as a ring plate on one end surface.
and is provided with a relatively short centering addition part protruding by a maximum of 3 mm on the other end face.
Assembly equipment as described in section. 7. The spacer member (4) has a hollow cylinder shape,
2. The assembly device according to claim 1, further comprising two window-like slit openings (21, 22) diametrically opposed to each other in the axial center. 8. End wall (3) and/or support ring (5, 6, 7, 7
8. Assembly device according to claim 1, characterized in that the spacer elements (4) are screwed onto the spacer elements (4) on their respective end faces.